Short answer: the Whizzer HE01. It ranks #868 of 1369 in-ear headphones by sound quality, rated 3.4/5, at $45; the qdc x FitEar Superior EX ranks #959, rated 3.3/5, at $45. Close enough in price that the sound-quality gap is the deciding factor.
The case for the Whizzer HE01: For a budget single dynamic driver earphone it earns a preference score of 66.0 in crinacle’s measurement, with a warm tilt that suits listeners who prefer a relaxed, bass forward sound. Watch for: An 8.1 dB dip near 6.4 kHz and a treble band averaging 3.3 dB below target dull cymbals and blunt detail, while a 4.2 dB peak near 11.9 kHz adds an uneven, slightly metallic edge.
Why pick the qdc x FitEar Superior EX: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. The tradeoff: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the Whizzer HE01. It is rated higher for sound quality than the qdc x FitEar Superior EX at the same price, so only choose the other one for a particular feature it does better.
Still deciding? The full Headphones rankings cover every ranked option.
For a budget single dynamic driver earphone it earns a preference score of 66.0 in crinacle’s measurement, with a warm tilt that suits listeners who prefer a relaxed, bass forward sound.
Amazon $45.00 eBay
A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
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Specifications Side By Side
| Whizzer HE01 | qdc x FitEar Superior EX | |
|---|---|---|
| Price | $45.00 | 45.00 |
| Ranked | #868 of 1369 in In-Ear Headphones | #959 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Harman Preference Score | 66 (measured by crinacle, via AutoEQ) | 65 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.78 dB standard deviation | 2.57 dB standard deviation |
| Tonal Tilt | -0.49 (negative is warmer, positive brighter) | -0.72 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Impedance | 18 ohms | 16 ohms |
| Sensitivity | 112 dB/mW | 100 dB SPL/mW |
| Frequency Response | 15Hz - 40kHz (Manufacturer specified) | 10Hz - 40kHz |
| Built-in Microphone | No | - |
| Back | Closed | Closed |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.7 dB at 30 Hz) |
| Drivers | - | 1 x 10mm coaxial dual-magnetic dynamic driver |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the Whizzer HE01 from aftersound, arn and pw; the qdc x FitEar Superior EX from aden, ekaudio, faxepremium and smirk, all via squig.link.
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